you can email us, streetcritique@nbr.com. or you can send us a note via twitter at my feed, @hudsonnbr, or nbr's feed. and facebook too. we'll feature some of your questions next wednesday. our guest for this evening's "street critique" is hilary kramer with gamechangerstocks.com. >> susie: here's what we're watching for tomorrow: quarterly results from best buy, conagra foods, gamestop, oracle and research in motion. we'll also see weekly jobless claims and durable goods orders for february. and our "planet forward" series features an idea that makes saving energy as simple as flipping a switch. stock buybacks were huge last year. america's biggest corporations more than doubled their share of repurchases. s&p 500 companies spent almost $300 billion dollars in 2010 buying back their own shares. that's up 117% from the $138 billion spent in 2009, when the recession ended. but despite the surge, s&p said last year's buybacks were still just half of where they were before the recession. >> tom: portugal is a country in politica